Device for notching an edge of a flexible web



Oct. 9, 1951 P. LEvlNE 2,570,696

DEVICE EoR NoTcHING AN EDGE 0E A EEEXBLE WEE Filed Aug. l2, 1948 4 Sheets-Sheet 1 L N E@ ETE .\\Q \\N\ \w Q S mm Il AQ a. Nw QW mm. mm. IS m EN l -..---.wwi min E ,MW/ E W @E n &R\ Q m mlq, m Q? wml Mw\ n mm. QN@ H \V VT@ R /G IN V EN TOR. Pau! L @1f/ne BY TTORA/E Y Oct. 9,1951 P. I EvaNE DEVICE FOR NOTCHING AN EDGE oF A FLEXIBLE WEB 4 Sheets-Sheet 2 Filed Aug. 12, 1948 JNVENroR. .pau/ Levine /TTORNEY Oct. 9, 1951 P. LEvlNE DEVICE EoR NOTCHING AN EDGE 0E A FLEXIBLE WEB Filed Aug. 12, 1948 4 Sheet's-,Sheet' INVENTOR. ./Dy/ [e1/ne ATTORNEY Oct. 9, 1951 P. LEvlNE 2,570,696

DEVICE FOR NOTCHING AN EDGE oF A FLExIBLE'wEB I 4 Sheets-Sheet Filed Aug. 12, 1948 INVENTOR pm?! lel/ e ATTORNEY 'alatenteci ct.

Aist-TEtre oFFiC'E nnvrcnFon NOTCHINGJADGE on FLEXIBLE was Pain Levine; verk, N.

tliird'to I-I illel'fLevine, BrooklyngjN; Y., and one= third 'tti`v d ames Levine, Flushing', N. Y;

vic'epfth'e character described,A including rollersV to" feena' nxibi web; motor means .for :rotating thefrollers,` aA scissors for ntching .an edge ofthe Web,- and means controlled bythe motdr'for perio dic'ally'moving the scissors 'towards an edge or the" web to receive the edge betweenthe .jaws of the scissors-and for operating tle sissors to notch'the web', at predetermined longitudinal lengths with respect to the web. VYet 'another object 'of this inventionjis to prov idea device of th'e`"character descrihed. includ.

chiii's Z'van'd`a top Vmember'l 3.'A Eachside starichi'on'Z comprises horizontal base prtions' I 4, a pairof'u'pWardly and' inwardly inclined legs i5',Y and a hori'zhtal transverse member I6. The legsl2 areinterconnected by front rear'parallel members Vi `atthe`level of member H5r and sup- .Miintedon the frvvardly projecting-portions img manually controlledV clutch means lto permit stopp' ingfofv rotation Vofth'eivelo feeding means Y While 'permitting' the notching means -to operate.

v S l ii ll.a,.furtheroloj'ec't of this'invention is `to previd'eia vdevice of tliecharacter described, in

ywlii'c'lthedistances between` the notches may be stin'a'fu'rtner object bfthis inw/ennemis top mvidea s tro'ngfcompact and durable machine of the 'character described. which shall be relatively iriepensiv'e to manufacture, which shall loe-sure arrangemritvof parts and method steps which wi l l. b e exemplified in the Aconstruction hereinafte'r'de'scribed,'andof which the sc ope ofinventidnlwill ber indicated in the following claims..

Ir"1 .tlie accompanying vdrawings in which is .shvvn various illustrative embodiments of this invention; Fig. `1 is a front elevational View of a'machine embodying the invention; Fi'gfZ is a side elevational-view thereof;

Fig.1 .3 is a top plan View of a portion'of themachine; Y. Fig.` 4 is a cross-sectional View taken on the line 444 of liif-,fl 3 ;y

Fig.. 5 -isan` end view of 'the disc `whichv controls thescis'sors';

is'a .cross-'sectional viewwof the clutch; Y

and" v- Fi'g. 7 isaperspective viewof the-scissors and' its'perating mechanism.`

,Referring now-.11.1 'detault .ineldravnigsj.; mi" desieilate's'thefmahine.@mmm/ingameinvention-f The' 's'arncoiriprisesa frame I i having side stanblacks 2 3' in"vvhich` is"jour na11ed a horizontal' shaft EE." Fixed to shaft `2li'is a horiaontalfrictin'fdifivefroller' 25T covered- `With. any -suitalole v aliravs'iv'e material to provide the friction. Loosely mountedV on the shaft'l is a pulley 26. Eulleyfdis providedvvith a pair o f parallel horizontal pins f Z'. The pulley 2 6 is"retained against "longitudinal movement on shaftg by collars'pr anyrotherfsuitable manner. Slidably nieiir'ited. on shaft 24 and vadjacent to lpulley 2L is acliits'lifsleeveZiLlA Sleeve 2 8 is formed with ai- 15, L- shapd slot '29.' Fired tothe s haft Manel p rojecting'in Vthe slot wis-apn; 3 0. The slotA 2Q has a'loiigitudinal portion 29a and a p ortion 29h a t right an g lc: s l'the're'to.V At theend of ,the clutch-i sleeve2l ladjac\ent to pulley 26, are a pairof holes" 3! adapted to receive the pins'21; `Itv vil1 now-bep uriderstoodY that When-the clutch 28 is slidably mevedftothe left, `looking` at Fig. 3, the pins 21 willenggage Within theV holes 3l for rotatinggthe.; shaft-224i when the` pulley 26 is rotated. Whenthei clutch 2 9 ismoved to thej right to disengage pins 2l` fromvv the rholes 3|-, rotation of thepulleywill i not rotate the ysha-ft 2li; or the roller 251' The y'ciutch sleevejZ may be formed With' externally knurled portion 32*so` that itzmayloe".readilyfA grasped by the hand of the operator'anel' moved toadesiredposition When the. pin 30 ism'oved into Vthe offset portion 291)4 of the slotgfthe clutch `will be heldl'in inoperative psitionn 1t Will-begnoted that-the.' sleeve 28. `is counter-1' boredgfat--one end asat30az; Fixedrtotthe shaftztis a .cenar totv which nts into the 'counterbrey 30m -.Betv zeen,the` collar 30h @and theA fen'clloff" counterbore 30a' is a coili compressin spring' 35e" which;urges;` 'sleeve' toward. 'the vpulley 2 6?.

.Mountedon the platform l'is*"arielectrie nectedifthrough rediic'tionet'gearin'gx in' "a-"gear heir-'l 31 to an output shaft 38. On shaft 38 are a pair of pulleys 39 and 40 next to each other and xed to rotate with the shaft 38. The pulleys 39 and 26 are interconnected by a belt 4l. It will now be understood that when the motor is energized the pulley 26 will be rotated, and when the sleeve 28 is moved to the left, the roller 25 will also be rotated for feeding a web 43 of cloth or any other suitable flexible sheet material, as will appear hereinafter.

Mounted on said frame portions |3a is a horizontal shaft 44 carrying an idler friction roller 45 which is almost tangent but slightly spaced from the roller 25. The roller 45 is covered with abrasive material to provide the friction. Also mounted on the front end of frame member |3a is a web tensioning device 5i). The tensioning device 5|] comprises a horizontal shaft 5| on which is pivoted end levers 52 interconnected by a pair of parallel shafts 53 and 54 on opposite sides of the shaft 5|.

On the frame portions 2U are a pair of aligned bearing blocks 55 in which is journalled a horizontal shaft 55 carrying a roller 51. The bottom of the roller 51 is substantially at the level of the top of the roller 25.

Mounted on the upper ends of the frame member 20 are bearing blocks 58 carrying a horizontal shaft 59 in which is mounted a roller 60. The rollers 25, 45; 51, 68 are in alignment, that is, they are disposed between a common pair of parallel vertical planes. The roller 59 is at a greater height than the roller 51. The roller 45 is at a level below the level of roller 25.

The web 43 moves in the direction of the arrows shown in Fig. 2. The web passes first over the bar or shaft 53, under the shaft 5|, over the shaft 54, then under and around the roller 45, then under and around roller 25, then under roller 51, then over roller 69, and the web is fed downwardly from the roller 50.

On shaft 59 is a pulley 5|. The pulley 6| is belted to the pulley 40 by a belt 62. On shaft 56 is a pulley 64, and on shaft 59 is a pulley 65. The pulleys 64, 65 are interconnected by a crossing belt 65, so that the roller 51 will be rotated in a direction opposite to the direction of rotation of roller 60. The rollers 25 and 68 are rotated in the same direction. It will now be understood that when the motor is energized and the clutch is moved by the operator to the left, the web 43 will be moved longitudinally by drive roller 25 and roller 45 in the direction of the arrow shown in Fig. 2.

Means is provided to notch the edge 43a of the web 43 at predetermined spaced distances. To this end, there is mounted on shaft 24, a gear 19. Gear and pulley 26 are xedly mounted by set screws 19a and 261) respectively on a common sleeve 26a, loose on the shaft 24. On the frame I3 is a bracket 1| supporting a bearing 12 in which is journalled a horizontal shaft 13 carrying pinions 14 meshing with the gear 10. On shaft 13 is a worm 15.

Mounted on the platform or table top 22 is a bearing member 16 in which is journalled a horizontal shaft 11 disposed at right angles to the shafts V24 and 13. On shaft 11 is a Worm wheel 18 meshing with the worm 15. Also fixed to the shaft 11 is an annular disc 18. 'I'he disc 18 is annular but at one part thereof, is a lug or projection 19 having a curved outer surface 80. Fixed to the face of disc 18 and spaced from the axial shaft 11 is a pivot pin 8|. Fixed to the table top 22 is a guide 83 inclined rearwardly from the right to the left side of the machine,

4 looking to the front of the nichi'ne. The guide 83 comprises a bottom Wall 84 and parallel upwardly and inwardly side guides 85. The guides are fixed to the plate 84 by screws 85a.

Mounted on the bottom Wall 84 and between the guides 85 is a fiat horizontal plate 86. Fixed to the plate 86 are a pair of upstanding parallel blocks 81. The blocks 81 are fixed to the plate 86 by screws 81a.

Interconnecting the pin 8| on disc 18 with a pin 90 on one of the blocks 81 is a link 9|. Received between the blocks 81 is one end 92 of a xed shearing member 93. The rear end portion 92 of the shearing member 93 is fixed to. the blocks 81 by a pair ofv transverse pins 94- passing through suitable openings in the blocksv 81 and riveted thereto.

second shearing member 91.

pivot 98.

The shearing member 91 comprises a shearing portion or jaw 99 having an upper shearing edge. |90 complementary to the shearing edge 96., Extending from the shearing jaw 99 is a long arml ||l| overlying and resting in the curved projection 19 of the disc 18.

platform 22 by a coil tension spring |93.

about the pivot 98.

It will now be understood that when the disc 18.

rotates, the link 9| will reciprocate the plate 85 and the blocks 81. Reciprocation of said plate 85` will cause reciprocation of the shears 93, 91 as a. whole. to the left, looking at Fig. 1, the projection 19 will. lower from its uppermost position permitting, spring |83 to rotate the shearing jaw 99 of shearl member 91 upwardly for notching edge 43a of' the webr43. Thus, as the shear moves to the left, the edge 43a of the web will be received between the shearingjaws 95, 91 and such jaws will then close, so that the shear edges 96, |80 will notch the cloth.

It will furthermore be noted that the shearing jaws 95, 99 are inclined in the same direction asthe guide 83, so that, as the web is fed, the notch will be substantially at right angles to the edgel 43a. It will be noted that the inclination of the shears is in the direction of the movement of the web.

The rollers 25 and 45 may be covered by a sheet of emery cloth or other friction material if desired, as indicated by the numerals 25a and45a. The rollers 51 and 50 may be covered by a sheet of felt, as indicated by the numerals 51a and 60a. When the clutch 28 is moved away from the pulley 26 the web will stop feeding. The web 43 passes around the rods 53, 5| and 54 and around the rollers 25 and 45 which have abrasive coverings. The back rollers 51 and 59 are covered with felt and the abrasive on the rollers 25 and 45 which stop moving keep the web from feeding. At the same time the shearing mechanism continues to operate because pulley 26 is fixed to rotate with the gear 18. The purpose of having the shearing mechanism continue operating when the web stops is to permit the operator to stop the regular notching operation if a portion of the web is spoiled or bad. When the operator comes to a bad part of the cloth she will permit the cloth to feed substantially to the end of the bad part and Extending upwardly from said portion 92 is an inclined shearing jaw' member 95 having a lower shearing edge 96.. Pivoted to portion 95 of shearing member 93 is a,

The shearingmembers 91 and 93 are pivoted together by a,

Arm |9| is interconnected to av The. coil |03 pulls down on arm |0| and tends to ro tate shearing member 91 in clockwise direction:

Furthermore, as the shears 93, 91' movev s declutch theweb feed'means while--continuinglto permit the shearing mechanism tomove toa pointv whereV the shears are about toY make a notch.r She will then start the web feeding operation so that the iirst notch is made justl past thebadl part, and then the regular intermittent notching operation continues.

In-orderto vary the distance between notches, the wormy 'l5- and worm wheel 18a mayv be changedf to achieve the desired relationship between the rotation. of disc 18' andthe longitudinal mevementof the web.

It Vwill thus be seen that-there isprovidedva vdevice in which Ythe several objects of this invention arei achieved, and which is well adaptedto meet theiconditions of practical use.

As; various possible embodiments might be made of' the above invention,` and asV various changesmight befmade in the embodiment above set forth or shown in the accompanying drawing, the. embodiment is to be interpreted asv illustrative andznot-.in a limiting sense.

' Having thus described my invention, I claim as new anddesire to secure by Letters Patent of the United States:

1; Armachine for notching an edgeof a web of ilexible;` sheet material at equally spaced distances, comprising rollers around which the web isiengagedl, means to rotate the rollers for feeding the web, a rotary disc, means controlled by the; rotating means for rotating said disc, a 'xed guide, a member mounted for reciprocatio'n on said guide, a link interconnecting said member with said.A disc for reciprocating said member as saiddiscrotates, shears comprising a pair of interpivoted: members provided withzshearing jaws, means topfix one of said interpivoted members to said reciprocating member, whereby to reciprocate said shearsas'said disc rotates, the other of thefinterpivoted members of said shears having ain-extension, and, means on said disc engaging saidxtensionfor'rotating said other of said interpvotedmembers.

i 2,.,'A-fmachineffcr notching an edge of a web offfiexible sheet' material at equallyY spaced distances, comprising rollers aroundwhich the vweb* isyengaged, means to rotate the rollers for feedinge. the weba rotary disc, meansI controlled by tigre;rotating means for rotating said disc, afixed guidaamember mounted for'reciprocation on said; guidaa linkinterconnecting said member with saidj disc for reciprocating said member asg'said* disc rotates, shears comprising a pair o-finterpivoted members provided with shearing jaws, means to fix one of said interpivoted members to said reciprocating member, whereby to reciprocate. saidv shears as said disc rotates, the other of the interpivoted members of said shears having an extension, and means on said disc engagingvsaid extension for rotating said other of'said interpivoted members, landspring means for retaining said extension in engagement with said engaging meanson said disc.

3. Axmachine of the character described, comprising a frictionroller adapted to receive ia web, a` shaft carrying said roller andv rotatable with said? roller, a pulley loosely mounted on said shaftclutch; means to connect said shaft and pulley, ay gear loose on said shaft and fixed to the *pulley for rotation therewith, a second shaft parallelto ,theiirstshafa a pinion on the second shaft meshing.- withsaidgear, a worm on said second shaft, a thirdshaft at right angles tothe-second shaft, a wormwheel on the third shaft meshing with said worm; a" disc"l on "said cof third shaft, a, member mounted for reciproca# tion, a link interconnecting said memberwith said disc for'reci-procating Asaid member. as saiddiscrotates, shears comprising a pair of interpi-voted members having shearing jaws; means to fix one of said members to said reciprocating member, the other interpivoted member having an extension, and an eccentric projection on said disc. engaging said extension.

4'. Ainachine of the character described,` comprising a friction roller adapted to receive aweb, abshaft carrying said roller and rotatabley with said. roller,` a pulley loosely mounted' onsaid shaft,4 clutch means to connectrsaid' shaftand pulley.,A a gear looseY on said shaftandixed to the-:pulley: for rotation therewith, ar second shaft parallel to: the rst shaft, at pinion on'v the seoonid shaftvmeshing with said gear, a worm on saidA secondY shaft, a third shaft at'Y right angles tether second, shaft,v a worm wheel on the thirdshaft, meshing with said wor-m, a disc onf said third` shaft, a member mounted for reciprocationgia link interconnecting said member with said. disc forV reciprocating said member as said discirotates, shears comprisinga pair of inter pivotedmembers having shearing jaws, Vmeans'to ixi one ofY said members to said reciprocating member, .the other interpivoted member having a-n extension, and an eccentric projection. on said,l disc engaging said extension, and spring means; to. retain said extension in engagement' with'rsaidrprojection on saidv disc.

5;A A machine of the character described, comprising ai friction roller adapted to receive aweb, aV shaft carrying said roller androtatablewith' saidr roller, a pulley loosely mounted. on said shaft, clutch means tov connect said shaftandl pulley, a gear loose on said'shaft and fixed toI theJ pulley for. rotation therewith, a second 'shaft parallelztothe first/shaft, a pinion on the second shaftt. meshing with said gear, a worm on-said second. shaft, a third shaft at right angles to. thersecond` shaft, a worm wheel on the third shaft meshing with said worm, ar discon said` third shaft, a member-mounted for reciprocation, a-link interconnecting said member'with said: discfor reciprocating said member as said disc rotates, shears comprising a pair of' inter-- pivoted membersA having shearing jaws, means toirfix one of said members to said reciprocating member, the other interpivoted member, having.

arr-extension, and an eccentric projection onsaid disc engaging said extension, and springr means@ toar'etainsaid extension in engagementwith said projection onsaid disc, a second roller parallell to..lth'ev first roller and adapted to receive saidV web?,A and means connected to said motor for rotating alsecond roller in the same direction as.k the iirstY roller.

6; A; machine of the character described,v com-- prisingI a4 friction roller adapted to receive a web; a= shaft carrying said roller and rotatable with said roller, a pulley loosely mounted on said shaft; clutch-means to connect said shaft and pulley, a gear loose on said shaft and fixed to the-pulley for rotation therewith, a second shaft parallel to the first shaft, a pinion on the second' sliaftv meshing with said gear, a worm on said second shaft, a third shaft at right anglesV to the second shaft, a worm wheel on the third`v shaft meshing with said worm, a disc on said thirdishaft, a member mounted for reciprocadisc-rotates, shearsJ comprising a;vl pail` ofi interpivoted members having shearing jaws, means to fix one of said members to said reciprocating member, the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension, and spring means to retain said extension in engagement with said projection on said disc, said reciprocating member being inclined relative to the direction of movement of the web.

7. A machine of the character described, comprising a friction roller adapted to receive a web, a shaft carrying said roller and rotatable with said roller, a pulley loosely mounted on said shaft, a gear loose on said shaft and fixed to the pulley for rotation therewith, a second shaft parallel to the first shaft, a pinion on the second shaft meshing with said gear, a worm on said second shaft,

va third shaft at right angles to the second shaft,

a worm wheel on the third shaft meshing with said worm, a disc on said third shaft, a member mounted for reciprocation, a link interconnecting said member with said disc for reciprocating said member as said disc rotates, shears comprising a pair of interpivoted members having shearing jaws, means to nx one of said members to said reciprocating member, the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension.

8. A machine of the character described, comprising a friction roller adapted to receive a web, a shaft carrying said roller and rotatable with said roller, a pulley loosely mounted on said shaft, a gear loose on said shaft and fixed to the pulley for rotation therewith, a second shaft parallel to the first shaft, a pinion on the second shaft meshing' with said gear, a worm on said second shaft, a third shaft at right angles to the second shaft, a worm wheel on the third shaft meshing with said worm, a disc on said third shaft, a member mounted for reciprocation, a link interconnecting said member with said disc for reciprocating said member as said disc rotates, shears comprising a pair of interpivoted members having shearing jaws, means to x one of said members to said reciprocating member, the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension, and spring means to retain said extension in engagement with said projection on said disc.

9. A machine of the characted described, comprising a friction roller adapted to receive a web, a shaft carrying said roller and rotatable with said roller, a pulley loosly mounted on said shaft, a gear loose on said shaft and fixed to the pulley for rotation therewith, a second shaft parallel to the first shaft, a pinion on the second shaft meshing with said gear, a worm on said second shaft, a third shaft at right angles to the second shaft. a worm wheel on the third shaft meshing with said worm, a disc on said third shaft, a member mounted for reciprocation, a link interconnecting said member with said disc for reciprocating said `member as said disc rotates, shears comprising a pair of interpivoted members having shearing jaws, means to fix one of said members to said reciprocating member, the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension, and spring means to retain said extension in engagement with said projection on said disc, a second roller parallel to the first roller and adapted to receive said web, and means connected to said motor for rotating a second roller in the same direction as the first roller.

10. A machine of the character described, comprising friction roller adapted to receiveV a Web;- a shaft carrying said roller and rotatable with said roller, a pulley loosely mounted on said shaft; a gear loose on said shaft and fixed to the pulley for reciprocation therewith, a second shaft parallel to the first shaft, a pinion on the second shaft meshing with said gear, a worm on said second shaft, a third shaft at right angles to the second shaft, a Worm wheel on the third shaft meshing with said worm, a disc on said third shaft, a member mounted for reciprocation, a link interconnecting said member with said disc for reciprocating said member as said disc rotates, shears comprising a pair of interpivoted members having shearing jaws, means to fix one of said members to said reciprocating member the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension, and spring means to retain said eX- tension in engagement with said projection on said disc, Va second roller parallel to the rst roller and adapted to receive said web, and means connected to said motor for rotating a second roller in the same direction as the first roller, a third roller engageable by said web and means to cause said third roller to rotate in a direction opposite to direction of rotation of the second roller.

11. A machine of the character described, comprising a friction roller adapted to receive a web, a shaft carrying said roller and rotatable with said roller, a pulley loosely mounted on said shaft, clutch means to connect said shaft and pulley, a gear loose on said shaft and fixed to the pulley for rotation therewith, a second shaft parallel to the first shaft, a pinion on the second shaft meshing with said gear, a worm on said second shaft, a third shaft at right angles to the seco-nd shaft, a worm wheel on the third shaft meshing with said worm, a disc on said third shaft, a member mounted for reciprocation, a link interconnecting said member with said disc for reciprocating said member as said disc rotates, shears comprising a pair of interpivoted members having shearing jaws, means to fix one of said members to Vsaid reciprocating member the other interpivoted member having an extension, and an eccentric projection on said disc engaging said extension, and spring means to retain said extension in engagement with said projection on said disc, a second roller parallel to the firstV roller and adapted to receive said web, and means connected to said motor for rotating a second roller in the same direction as the rst roller, a third roller engageable by said web and means to cause said third roller to rotate in a direction opposite to direction of rotation of the second roller.

PAUL LEVINE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 347,999 Eastman Aug. 24, 1886 348,000 Eastman Aug. 24, 1886 948,632 Livernoch Feb. 8, 1910 1,087,804 Metzenbacher Feb. 17, 1914 1,171,359 Schram Feb. 8, 1916 1,987,409 Moore Jan. 8, 1935 2,026,402 Schlemmer Dec. 31, 1935 FOREIGN PATENTS Number Y Country Date `460,663 Y' Germany May 10, 1928 

